VOCABULARY
ARC LENGTH
SECTOR AREA
100

The term used for distance around a circle.

What is Circumference?

100

The circumference of a circle is 20 inches, the arc length of the semi-circle is...

What is 10 inches?

100

The area of a circle is 24 m2. The area of the semi-circle would be...

What is 12 m2?

200

A portion of the circumference of a circle.

What is an Arc?

200

Joe has a pizza with circumference of 1600 mm. He cut it into 10 slices. The arc length of one slice of pizza is...

What is 160 mm?

200

Dr. Sparks has a pizza with 8 slices. The area of the whole pizza is 32 cm2, the area of one slice would be...

What is 4 cm2?

300

A portion of the area of a circle.

What is a Sector?

300

With an angle of 25-degrees, a radius of 2 m, and a circumference of 4-pi m, the measure of the arc length is...

What is 0.87 m or 5/18-pi m?

300

A circle with a radius of 1.5 inches and a central angle of 270-degrees has a sector area of.. (1 d.p)

What is 5.3 square inches /1.6875-pi square inches?

400

The angle created when two radii meet at the center of a circle.

What is Central Angle OR Sector Angle OR Arc Measure?

400

With a central angle of 30 degrees, a diameter of 16, the arc length would be...

What is 4.19 units / 4/3-pi units?

400

A circle has a diameter of 10 km2, and central angle of 45-degrees. The sector area to 2 d.p. would be...

What is 9.81 km2?

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